No direct Lyssna replacements listed yet
Open-source testing & QA tools. To compare with Lyssna.
34 open-source testing & QA tools
Playwright
Testing & QA
Playwright is a framework for Web Testing and Automation. It allows testing Chromium, Fire
Apache-2.0vs BrowserStack★ 97k
k6
Testing & QA
A modern load testing tool, using Go and JavaScript
AGPL-3.0vs OpenText LoadRunner★ 32k
Locust
Testing & QA
Write scalable load tests in plain Python 🚗💨
MITvs OpenText LoadRunner★ 28k
Promptfoo
AI Infrastructure
Test your prompts, agents, and RAGs. Red teaming/pentesting/vulnerability scanning for AI.
MITvs Braintrust★ 26k
Appium
Testing & QA
Cross-platform automation framework for all kinds of apps, built on top of the W3C WebDriv
Apache-2.0vs BrowserStack★ 22k
Detox
Testing & QA
Gray box end-to-end testing and automation framework for mobile apps
MITvs Kobiton★ 12k
Robot Framework
Testing & QA
Generic automation framework for acceptance testing and RPA
Apache-2.0vs Katalon★ 12k
WebdriverIO
Testing & QA
Next-gen browser and mobile automation test framework for Node.js
MITvs BrowserStack★ 9.8k
Apache JMeter
Testing & QA
Apache JMeter open-source load testing tool for analyzing and measuring the performance of
Apache-2.0vs OpenText LoadRunner★ 9.6k
Artillery
Testing & QA
The complete load testing platform. Everything you need for production-grade load tests. S
MPL-2.0vs OpenText LoadRunner★ 9.1k
Karate
Testing & QA
Test Automation Made Simple
MITvs Postman★ 9k
Lamda
Testing & QA
Android Full-Stack Device Control Platform: WebRTC/H.264 remote desktop, UI/OCR/image-matc
MIT★ 8.5k
Newman
API Tools
Newman is a command-line collection runner for Postman
Apache-2.0★ 7.3k
Gatling
Testing & QA
Modern Load Testing as Code
Apache-2.0vs OpenText LoadRunner★ 7k
Sitespeed.io
Monitoring & Observability
sitespeed.io is an open-source tool for comprehensive web performance analysis, enabling y
MITvs Pingdom★ 5k
agent-device
Testing & QA
Mobile app automation and verification for AI coding agents. CLI, MCP server, and typed No
MIT★ 4.9k
Tox
Testing & QA
Command line driven CI frontend and development task automation tool.
MIT★ 3.9k
Taiko
Testing & QA
A node.js library for testing modern web applications
MITvs Ghost Inspector★ 3.7k
QA Wolf CLI
Testing & QA
QA Wolf from anywhere — your terminal, your CI, your AI agent.
Apache-2.0★ 3.5k
Shortest
Testing & QA
QA via natural language AI tests
MITvs mabl★ 5.7k
Airtest
Testing & QA
UI Automation Framework for Games and Apps
Apache-2.0vs Kobiton★ 9.6k
github-action-benchmark
Testing & QA
GitHub Action for continuous benchmarking to keep performance
MIT★ 1.3k
PhpMetrics
Developer Tools
Beautiful and understandable static analysis tool for PHP
MIT★ 2.6k
Zerocode
Testing & QA
zerocode-tdd is a community-developed, free, open-source, outcome-driven automated testing
Apache-2.0vs ReadyAPI★ 1k
Bencher
Testing & QA
🐰 Bencher - Continuous Benchmarking
OSS★ 909
Magnitude
Testing & QA
Open-source, vision-first browser agent
Apache-2.0vs Browserbase★ 4.1k
Pa11y CI
Testing & QA
Pa11y CI is a CI-centric accessibility test runner, built using Pa11y
LGPL-3.0★ 637
TaskCat
CI/CD & DevOps
Test all the CloudFormation things! (with TaskCat)
Apache-2.0★ 1.2ka11y.css
Testing & QA
This CSS file intends to warn developers about possible risks and mistakes that exist in H
MIT★ 1.6k
Xcov
Testing & QA
Nice code coverage reporting without hassle
MITvs Codecov★ 573
pytest-testmon
Testing & QA
Selects tests affected by changed files. Executes the right tests first. Continuous test r
MIT★ 1k
ClusterFuzzLite
Testing & QA
ClusterFuzzLite - Simple continuous fuzzing that runs in CI.
Apache-2.0★ 537
Step CI
Testing & QA
Automated API Testing and Quality Assurance
MPL-2.0vs Postman★ 1.9k
Crusher
Testing & QA
🧙♀️ Fast low-code testing — create, run tests and get alerts ⏱️ Create test in <60 secs
MITvs Katalon★ 588